BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//time.now/holidays//NONSGML v1.0//EN
BEGIN:VEVENT
UID:42d8bd13-e6dc-4e3f-be9e-b95f17836b67
DTSTAMP:20260420T160558Z
DTSTART;VALUE=DATE:20260501
SUMMARY:National Day (Pologne)
END:VEVENT
END:VCALENDAR